Trace number 356277

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds, and are wall clock time (not CPU time).

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to X seconds (see the parameters in the trace). After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  5. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerCPU timeWall clock time
picosat 535SAT 27.8788 27.9114

General information on the benchmark

Nameindustrial/anbulagan/
medium-sat/dated-10-13-s.cnf
MD5SUM120a205e1420676f8007fba80a5a88e7
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark19.0121
Satisfiable
(Un)Satisfiability was proved
Number of variables181082
Number of clauses824258
Sum of the clauses size1887794
Maximum clause length10
Minimum clause length1
Number of clauses of size 115233
Number of clauses of size 2657174
Number of clauses of size 3117631
Number of clauses of size 43800
Number of clauses of size 515200
Number of clauses of size over 515220

Solver Data (download as text)

 [...]

#
# trace file is too large. Trace was truncated at this point.
#

27.77/27.84	v -180655 -180656 -180657 -180658 -180659 -180660 -180661 -180662 -180663
27.77/27.84	v -180664 -180665 -180666 -180667 -180668 -180669 -180670 -180671 -180672
27.77/27.84	v -180673 -180674 -180675 -180676 -180677 -180678 -180679 -180680 -180681
27.77/27.84	v -180682 -180683 -180684 -180685 -180686 -180687 -180688 -180689 -180690
27.77/27.84	v -180691 -180692 -180693 -180694 -180695 -180696 -180697 -180698 -180699
27.77/27.84	v -180700 -180701 -180702 -180703 -180704 -180705 -180706 -180707 -180708
27.77/27.84	v -180709 -180710 -180711 -180712 180713 -180714 -180715 -180716 -180717
27.77/27.84	v -180718 -180719 -180720 -180721 -180722 -180723 -180724 -180725 -180726
27.77/27.84	v -180727 -180728 -180729 -180730 -180731 -180732 -180733 -180734 -180735
27.77/27.84	v -180736 -180737 -180738 -180739 -180740 -180741 -180742 -180743 -180744
27.77/27.84	v -180745 -180746 -180747 -180748 -180749 -180750 -180751 -180752 -180753
27.77/27.84	v -180754 -180755 -180756 -180757 -180758 -180759 -180760 -180761 -180762
27.77/27.84	v -180763 -180764 -180765 -180766 -180767 -180768 -180769 -180770 -180771
27.77/27.84	v -180772 -180773 -180774 -180775 -180776 -180777 -180778 -180779 -180780
27.77/27.84	v -180781 -180782 -180783 -180784 -180785 -180786 -180787 -180788 -180789
27.77/27.84	v -180790 -180791 -180792 -180793 -180794 -180795 -180796 -180797 -180798
27.77/27.84	v -180799 -180800 -180801 -180802 -180803 -180804 -180805 -180806 -180807
27.77/27.84	v -180808 -180809 -180810 -180811 -180812 -180813 -180814 -180815 -180816
27.77/27.84	v -180817 -180818 -180819 -180820 -180821 -180822 -180823 -180824 -180825
27.77/27.84	v -180826 -180827 -180828 -180829 -180830 -180831 -180832 -180833 -180834
27.77/27.84	v -180835 -180836 -180837 -180838 -180839 -180840 -180841 -180842 -180843
27.77/27.84	v -180844 -180845 -180846 -180847 -180848 -180849 -180850 -180851 -180852
27.77/27.84	v -180853 -180854 -180855 -180856 -180857 180858 -180859 -180860 -180861
27.77/27.84	v -180862 -180863 -180864 -180865 -180866 -180867 -180868 -180869 -180870
27.77/27.84	v -180871 -180872 -180873 -180874 -180875 -180876 -180877 -180878 -180879
27.77/27.84	v -180880 -180881 -180882 -180883 -180884 -180885 -180886 -180887 -180888
27.77/27.84	v -180889 -180890 -180891 -180892 -180893 -180894 -180895 -180896 -180897
27.77/27.84	v -180898 -180899 -180900 -180901 -180902 -180903 -180904 -180905 -180906
27.77/27.84	v -180907 -180908 -180909 -180910 -180911 -180912 -180913 -180914 -180915
27.77/27.84	v -180916 -180917 -180918 -180919 -180920 -180921 -180922 -180923 -180924
27.77/27.84	v -180925 -180926 -180927 -180928 -180929 -180930 -180931 -180932 -180933
27.77/27.84	v -180934 -180935 -180936 -180937 -180938 -180939 -180940 -180941 -180942
27.77/27.84	v -180943 -180944 -180945 -180946 -180947 -180948 -180949 -180950 -180951
27.77/27.84	v -180952 -180953 -180954 -180955 -180956 -180957 -180958 -180959 -180960
27.77/27.84	v -180961 -180962 -180963 -180964 -180965 -180966 -180967 -180968 -180969
27.77/27.84	v 180970 -180971 -180972 -180973 -180974 -180975 -180976 -180977 -180978
27.77/27.84	v -180979 -180980 -180981 -180982 -180983 -180984 -180985 -180986 -180987
27.77/27.84	v -180988 -180989 -180990 -180991 -180992 -180993 -180994 -180995 180996
27.77/27.89	v -180997 -180998 -180999 -181000 -181001 -181002 -181003 -181004 181005
27.77/27.89	v -181006 -181007 -181008 -181009 -181010 -181011 -181012 -181013 -181014
27.77/27.89	v -181015 -181016 -181017 -181018 -181019 -181020 -181021 -181022 -181023
27.77/27.89	v 181024 -181025 -181026 -181027 -181028 -181029 -181030 -181031 -181032
27.77/27.89	v -181033 -181034 -181035 -181036 -181037 -181038 -181039 -181040 -181041
27.77/27.89	v -181042 -181043 -181044 -181045 -181046 -181047 -181048 -181049 -181050
27.77/27.89	v -181051 -181052 -181053 -181054 -181055 -181056 -181057 -181058 -181059
27.77/27.89	v -181060 -181061 -181062 -181063 -181064 -181065 -181066 -181067 -181068
27.77/27.89	v -181069 -181070 -181071 -181072 -181073 -181074 -181075 -181076 -181077
27.77/27.89	v -181078 -181079 -181080 -181081 -181082 0

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.2 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node60/watcher-356277-1176855198 -o ROOT/results/node60/solver-356277-1176855198 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/356277-1176855198/picosat /tmp/evaluation/356277-1176855198/instance-356277-1176855198.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 7500 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.99 0.99 0.99 3/64 30251
/proc/meminfo: memFree=1815128/2055920 swapFree=4179544/4192956
[pid=30251] ppid=30249 vsize=728 CPUtime=0
/proc/30251/stat : 30251 (picosat) R 30249 30251 29589 0 -1 4194304 96 0 0 0 0 0 0 0 18 0 1 0 133429835 745472 81 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/30251/statm: 182 81 40 102 0 77 0

[startup+0.0763811 s]
/proc/loadavg: 0.99 0.99 0.99 3/64 30251
/proc/meminfo: memFree=1815128/2055920 swapFree=4179544/4192956
[pid=30251] ppid=30249 vsize=2664 CPUtime=0.06
/proc/30251/stat : 30251 (picosat) R 30249 30251 29589 0 -1 4194304 489 0 0 0 2 4 0 0 18 0 1 0 133429835 2727936 465 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/30251/statm: 666 465 40 102 0 561 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 2664

[startup+0.101383 s]
/proc/loadavg: 0.99 0.99 0.99 3/64 30251
/proc/meminfo: memFree=1815128/2055920 swapFree=4179544/4192956
[pid=30251] ppid=30249 vsize=2796 CPUtime=0.09
/proc/30251/stat : 30251 (picosat) R 30249 30251 29589 0 -1 4194304 496 0 0 0 3 6 0 0 18 0 1 0 133429835 2863104 472 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/30251/statm: 699 472 40 102 0 594 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2796

[startup+0.301402 s]
/proc/loadavg: 0.99 0.99 0.99 3/64 30251
/proc/meminfo: memFree=1815128/2055920 swapFree=4179544/4192956
[pid=30251] ppid=30249 vsize=3192 CPUtime=0.29
/proc/30251/stat : 30251 (picosat) R 30249 30251 29589 0 -1 4194304 618 0 0 0 11 18 0 0 19 0 1 0 133429835 3268608 594 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/30251/statm: 798 594 40 102 0 693 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3192

[startup+0.701442 s]
/proc/loadavg: 0.99 0.99 0.99 3/64 30251
/proc/meminfo: memFree=1815128/2055920 swapFree=4179544/4192956
[pid=30251] ppid=30249 vsize=10400 CPUtime=0.69
/proc/30251/stat : 30251 (picosat) R 30249 30251 29589 0 -1 4194304 1985 0 0 0 29 40 0 0 22 0 1 0 133429835 10649600 1961 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/30251/statm: 2600 1961 40 102 0 2495 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 10400

[startup+1.50152 s]
/proc/loadavg: 0.99 0.99 0.99 2/65 30252
/proc/meminfo: memFree=1802128/2055920 swapFree=4179544/4192956
[pid=30251] ppid=30249 vsize=20316 CPUtime=1.49
/proc/30251/stat : 30251 (picosat) R 30249 30251 29589 0 -1 4194304 3518 0 0 0 64 85 0 0 25 0 1 0 133429835 20803584 3494 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/30251/statm: 5079 3494 40 102 0 4974 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 20316

[startup+3.10168 s]
/proc/loadavg: 0.99 0.99 0.99 2/65 30252
/proc/meminfo: memFree=1799888/2055920 swapFree=4179544/4192956
[pid=30251] ppid=30249 vsize=24288 CPUtime=3.09
/proc/30251/stat : 30251 (picosat) R 30249 30251 29589 0 -1 4194304 4516 0 0 0 137 172 0 0 25 0 1 0 133429835 24870912 4492 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/30251/statm: 6072 4492 40 102 0 5967 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 24288

[startup+6.30199 s]
/proc/loadavg: 0.99 0.99 0.99 2/65 30252
/proc/meminfo: memFree=1791056/2055920 swapFree=4179544/4192956
[pid=30251] ppid=30249 vsize=35476 CPUtime=6.29
/proc/30251/stat : 30251 (picosat) R 30249 30251 29589 0 -1 4194304 6765 0 0 0 295 334 0 0 25 0 1 0 133429835 36327424 6716 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134525741 0 0 4096 0 0 0 0 17 1 0 0
/proc/30251/statm: 8869 6716 42 102 0 8764 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 35476

[startup+12.7016 s]
/proc/loadavg: 0.99 0.99 0.99 2/65 30252
/proc/meminfo: memFree=1788368/2055920 swapFree=4179544/4192956
[pid=30251] ppid=30249 vsize=35484 CPUtime=12.69
/proc/30251/stat : 30251 (picosat) R 30249 30251 29589 0 -1 4194304 6776 0 0 0 935 334 0 0 25 0 1 0 133429835 36335616 6725 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134544751 0 0 4096 0 0 0 0 17 1 0 0
/proc/30251/statm: 8871 6725 48 102 0 8766 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 35484

[startup+25.5019 s]
/proc/loadavg: 0.99 0.99 0.99 2/65 30252
/proc/meminfo: memFree=1787984/2055920 swapFree=4179544/4192956
[pid=30251] ppid=30249 vsize=35872 CPUtime=25.48
/proc/30251/stat : 30251 (picosat) R 30249 30251 29589 0 -1 4194304 6903 0 0 0 2214 334 0 0 25 0 1 0 133429835 36732928 6852 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134525791 0 0 4096 0 0 0 0 17 1 0 0
/proc/30251/statm: 8968 6852 48 102 0 8863 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 35872

Solver just ended. Dumping a history of the last processes samples

[startup+27.101 s]
/proc/loadavg: 0.99 0.99 0.99 2/65 30252
/proc/meminfo: memFree=1787856/2055920 swapFree=4179544/4192956
[pid=30251] ppid=30249 vsize=36000 CPUtime=27.08
/proc/30251/stat : 30251 (picosat) R 30249 30251 29589 0 -1 4194304 6938 0 0 0 2374 334 0 0 25 0 1 0 133429835 36864000 6887 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134525741 0 0 4096 0 0 0 0 17 1 0 0
/proc/30251/statm: 9000 6887 48 102 0 8895 0
Current children cumulated CPU time (s) 27.08
Current children cumulated vsize (KiB) 36000

[startup+27.5051 s]
/proc/loadavg: 0.99 0.99 0.99 2/65 30252
/proc/meminfo: memFree=1787728/2055920 swapFree=4179544/4192956
[pid=30251] ppid=30249 vsize=36000 CPUtime=27.49
/proc/30251/stat : 30251 (picosat) R 30249 30251 29589 0 -1 4194304 6950 0 0 0 2415 334 0 0 25 0 1 0 133429835 36864000 6899 18446744073709551615 134512640 134931368 4294956640 18446744073709551615 134529802 0 0 4096 0 0 0 0 17 1 0 0
/proc/30251/statm: 9000 6899 48 102 0 8895 0
Current children cumulated CPU time (s) 27.49
Current children cumulated vsize (KiB) 36000

[startup+27.9011 s]
/proc/loadavg: 0.99 0.99 0.99 2/65 30252
/proc/meminfo: memFree=1787728/2055920 swapFree=4179544/4192956
[pid=30251] ppid=30249 vsize=0 CPUtime=27.87
/proc/30251/stat : 30251 (picosat) D 30249 30251 29589 0 -1 4194308 6962 0 0 0 2452 335 0 0 17 0 1 0 133429835 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 0 18446744072100051646 0 0 17 1 0 0
/proc/30251/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 27.87
Current children cumulated vsize (KiB) 0

Child status: 10
Real time (s): 27.9114
CPU time (s): 27.8788
CPU user time (s): 24.5263
CPU system time (s): 3.35249
CPU usage (%): 99.8831
Max. virtual memory (cumulated for all children) (KiB): 36004

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 24.5263
system time used= 3.35249
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 6962
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 288
involuntary context switches= 28

runsolver used 0.040993 second user time and 0.111982 second system time

The end

Launcher Data (download as text)

Begin job on node60 on Wed Apr 18 00:13:19 UTC 2007

IDJOB= 356277
IDBENCH= 20361
IDSOLVER= 171
FILE ID= node60/356277-1176855198

PBS_JOBID= 4590221

Free space on /tmp= 66477 MiB

SOLVER NAME= picosat 535
BENCH NAME= HOME/pub/bench/SAT07/industrial/anbulagan/medium-sat/dated-10-13-s.cnf
COMMAND LINE= /tmp/evaluation/356277-1176855198/picosat /tmp/evaluation/356277-1176855198/instance-356277-1176855198.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node60/watcher-356277-1176855198 -o ROOT/results/node60/solver-356277-1176855198 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/356277-1176855198/picosat /tmp/evaluation/356277-1176855198/instance-356277-1176855198.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  120a205e1420676f8007fba80a5a88e7

RANDOM SEED= 945610184

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node60.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.214
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.214
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1815536 kB
Buffers:         21912 kB
Cached:         172896 kB
SwapCached:       7764 kB
Active:         100720 kB
Inactive:       108384 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1815536 kB
SwapTotal:     4192956 kB
SwapFree:      4179544 kB
Dirty:           14980 kB
Writeback:           0 kB
Mapped:          15940 kB
Slab:            17256 kB
Committed_AS:  1498152 kB
PageTables:       1464 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66477 MiB

End job on node60 on Wed Apr 18 00:13:47 UTC 2007